EP 1974193 A1 20081001 - RAMAN SPECTROSCOPY SYSTEM AND METHOD USING A SUBWAVELENGTH RESONANT GRATING FILTER
Title (en)
RAMAN SPECTROSCOPY SYSTEM AND METHOD USING A SUBWAVELENGTH RESONANT GRATING FILTER
Title (de)
RAMAN-SPEKTROSKOPIESYSTEM UND -VERFAHREN MIT EINEM SUBWELLENLÄNGEN-RESONANZGITTERFILTER
Title (fr)
SYSTÈME ET PROCÉDÉ DE SPECTROMÉTRIE RAMAN FAISANT APPEL À UN FILTRE À RÉSEAU RÉSONANT DE SOUS-LONGUEUR D'ONDE
Publication
Application
Priority
- US 2006028301 W 20060721
- US 25707306 A 20060117
Abstract (en)
[origin: US2007165214A1] A Raman spectroscopy system is disclosed which includes a sub-wavelength resonant grating filter and a photodiode with integrated sub-wavelength resonant grating filter are disclosed. The resonant grating filter comprises an array of diffraction elements having a periodic spacing that is less than the wavelength of radiation to be filtered and which are formed over a waveguide layer. The filter, which can reject a specific wavelength of radiation, can be placed between a Raman sample and a Raman detector in order to filter radiation that is elastically scattered from the sample while transmitting other wavelengths. The wavelength rejected by the filter can be selected by tilting the filter with respect to the radiation incident upon the filter.
IPC 8 full level
CPC (source: EP US)
G01J 3/02 (2013.01 - EP US); G01J 3/0227 (2013.01 - EP US); G01J 3/0256 (2013.01 - EP US); G01J 3/18 (2013.01 - EP US); G01J 3/44 (2013.01 - EP US); G01N 21/65 (2013.01 - EP US); G02B 5/1809 (2013.01 - EP US); G01N 21/658 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
US 2007165214 A1 20070719; US 7474396 B2 20090106; CN 101360981 A 20090204; EP 1974193 A1 20081001; JP 2009524017 A 20090625; WO 2007084184 A1 20070726
DOCDB simple family (application)
US 25707306 A 20060117; CN 200680051251 A 20060721; EP 06788053 A 20060721; JP 2008550305 A 20060721; US 2006028301 W 20060721